title: Wearable and superhydrophobic hardware for ambulatory biopotential acquisition.
abstract: Wearable monitoring devices are a promising trend for ambulatory and real time biosignal processing, because they improve access and coverage by means of comfortable sensors, with real-time communication via mobile networks. In this paper, we present a garment for ambulatory electrocardiogram monitoring, a smart t-shirt with a textile electrode that conducts electricity and has a coating designed to preserve the user's hygiene, allowing long-term mobile measurements. Silicon dioxide nanoparticles were applied on the surface of the textile electrodes to preserve conductivity and impart superhydrophobic properties. A model to explain these results is proposed. The best result of this study is obtained when the contact angles between the fluid and the fabric exceeded 150°, while the electrical resistivity remained below 5 Ω·cm, allowing an acquisition of high quality electrocardiograms in moving patients. Thus, this tool represents an interesting alternative for medium and long-term measurements, preserving the textile feeling of clothing and working under motion conditions.
authors.forename: F J
authors.initials: FJ
authors.lastname: Martinez-Tabares
authors.forename: E
authors.initials: E
authors.lastname: Delgado-Trejos
authors.forename: G
authors.initials: G
authors.lastname: Castellanos-Dominguez
mesh_terms: D003020:Clothing; D004553:Electric Conductivity; D015716:Electrocardiography, Ambulatory / Q000295:instrumentation*; D004566:Electrodes; D004867:Equipment Design; D006801:Humans; D053768:Metal Nanoparticles / Q000737:chemistry; D008962:Models, Theoretical; D018670:Monitoring, Ambulatory / Q000295:instrumentation* / Q000379:methods; D009068:Movement; D044367:Phase Transition; D012815:Signal Processing, Computer-Assisted; D012822:Silicon Dioxide / Q000737:chemistry; D013784:Textiles
chemical_list: D012822:Silicon Dioxide